#include <iostream>
#include "head.h"
using std::cout;
using std::endl;

int main(){
    cout << "add(1, 2) = " << add(1, 2) << endl;
    cout << "min(3, 1) = " << min(3, 1) << endl;
    cout << "plu(4, 2) = " << plu(4, 2) << endl;
    cout << "div(4, 2) = " << div(4.0, 2.0) << endl; 

    return 0;
}